Armstrong UHA (Ultra High Aspect) UHA770 hydrofoil front wing: 770 cm², 985 mm span, aspect ratio 12.60, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures from Armstrong's own published specifications.
Projected and flat area run 3–8% apart. A marked area is one whose brand does not state which it publishes, so a match inside the area tolerance may be comparing unlike figures.
| Brand | Wing | Area cm² | Δ area | Aspect ratio | Δ AR | Span mm | Band |
|---|---|---|---|---|---|---|---|
| Cabrinha | Prestige 760 | 760 | -1.3% | 12.38 | -1.7% | 970 | C5 Very high aspect |
| Axis | Fireball ULTRA Fireball 1000 | 773 | +0.4% | 12.95 | +2.8% | 1,000 | C5 Very high aspect |
| Code Foils | R Series Front Wing 770R | 770 | +0.0% | 13.00 | +3.2% | 1,000 | C5 Very high aspect |
| Axis | ART PRO ART PRO 951 | 768 | -0.3% | 12.01 | -4.7% | 951 | C5 Very high aspect |
| AFS | Pure HA Fuselink Foil (monobloc front wing + fuselage) Pure HA 800 | 800 | +3.9% | 13.00 | +3.2% | 1,000 | C5 Very high aspect |
| AFS | Evo HA Front Wing HA750 | 750 | -2.6% | 13.30 | +5.6% | 1,000 | C5 Very high aspect |
| GONG | Veloce HDW V3 S | 750 | -2.6% | 13.30 | +5.6% | 1,000 | C5 Very high aspect |
| North | Sonar DW750 DW750 | 750 | -2.6% | 13.30 | +5.6% | 1,000 | C5 Very high aspect |
| F-One | EAGLE X UHM Carbon EAGLE X 800 | 800 | +3.9% | 12.00 | -4.8% | 980 | C5 Very high aspect |
| Naish | SHA Foil Front Wing SHA 733 | 733 | -4.8% | 13.10 | +4.0% | 980 | C5 Very high aspect |
| Family | UHA |
|---|---|
| Size | UHA770 |
| Area, cm² | 770 |
| Area basis | unknown |
| Span, mm | 985 |
| Chord, mm | — |
| Aspect ratio | 12.60 |
| Band | C5 Very high aspect |
| Brand files it under | Glide / high aspect |
| Disciplines | — |
| Construction | carbon |
| Model year | 2026 |
| Source | manufacturer |
The brand's published aspect ratio agrees with its own span and area (span² ÷ area) to within 5%, so the figure is confirmed.
See Armstrong on the plot →Data current to August 2026. Fast Bobby is the researcher, never the reviewer: every figure above is the manufacturer's published claim, converted to comparable units, and nothing here is a riding impression.